Commit 6f39eb87 authored by Stefan Sørensen's avatar Stefan Sørensen Committed by David S. Miller
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dp83640: Verify calibration pin assignment 



This constraints the pin assignment to not allow the calibration function to
be reassigned and only allow reassigning the calibratin pin if only one phy is
connected.

Signed-off-by: default avatarStefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ad01577a

drivers/net/phy/dp83640.c

+10 −0
Original line number Diff line number Diff line
@@ -510,6 +510,16 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp, 
static int ptp_dp83640_verify(struct ptp_clock_info *ptp, unsigned int pin,

			      enum ptp_pin_function func, unsigned int chan)

{

	struct dp83640_clock *clock =

		container_of(ptp, struct dp83640_clock, caps);



	if (clock->caps.pin_config[pin].func == PTP_PF_PHYSYNC &&

	    !list_empty(&clock->phylist))

		return 1;



	if (func == PTP_PF_PHYSYNC)

		return 1;



	return 0;

}